<?php
namespace Hanyuu;

use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;

final class HanyuuSasaeExtension extends AbstractExtension {
    private HanyuuContext $ctx;
    private ?object $assets;

    public function __construct(HanyuuContext $ctx) {
        $this->ctx = $ctx;
        $this->assets = $ctx->getWebAssetInfo();
    }

    public function getFunctions() {
        return [
            new TwigFunction('asset', $this->getAssetPath(...)),
            new TwigFunction('git_commit_hash', GitInfo::hash(...)),
            new TwigFunction('git_tag', GitInfo::tag(...)),
            new TwigFunction('git_branch', GitInfo::branch(...)),
            new TwigFunction('startup_time', fn(float $time = HAU_STARTUP) => microtime(true) - $time),
            new TwigFunction('sql_query_count', $this->ctx->getDbQueryCount(...)),
        ];
    }

    public function getAssetPath(string $name): string {
        return $this->assets?->{$name} ?? '';
    }
}